2 D-Ring Screws 3/8"
Two, precision made 3/8"-20 stainless steel (metal) tripod screws.
3/8" metal male thread with flat head screwdriver slot & hinged "D" Ring.
Shaft is 15mm in length, including the thread
Total length including base is 18.5mm.
Threaded part of the shaft is 9mm
Head is 20mm in diameter